De facto company: definition, risks and evidence

Updated March 29, 2026 - The de facto company or de facto company is not a social form that one voluntarily chooses with statutes. It is a legal qualification which can be retained when people have acted together as partners without having correctly formalized their company. In practice, it often appears in disputes.

Article 1832 of the Civil Code recalls the three pillars of the partnership contract:

• contributions;
• a joint enterprise with a view to sharing a profit or a saving;
• participation in losses.

To complete, see also SAS: definition and Business creation: expert formula.

The Court of Cassation recalls that one cannot automatically deduce the intention to associate from a simple financial participation. The judgment of June 23, 2004 emphasizes the need to distinctly establish the cumulative éléments of the company. The judgment of March 15, 2017 also recalls that a company created in fact is not to be confused with a joint venture company.

• joint project operates without clear statutes;
• sustainable pooling of resources and income;
• operation of a multi-party activity without finalized legal organization;
• conflict between partners at the time of sharing or debt.

• dispute over the distribution of profits;
• discussion of losses and debt;
• difficulties of proof;
• judicial reclassification of a relationship that the parties thought was informal.

Hayot Expertise Advice: the longer a multiple activity lasts over time without a written framework, the greater the risk of litigation against a de facto company.

We help to secure multiple projects before conflict, or to re-read an already degraded situation to identify legal and tax risks.

Quick link: Secure your project or your corporate dispute

To find a de facto company, the judge does not stop at a vague impression or a simple shared project. The court looks for specific indicators: real contributions, a shared intention to act as partners and a profit-or-loss sharing logic. In other words, the facts matter more than the labels.

What matters most in the evidence#

The most useful materials are often concrete: cross-payments, purchases financed by two people, rent or expenses paid together, emails describing the project as a shared business, or conduct that is consistent with real partnership. By contrast, simply helping someone out or working on the same file from time to time is not enough.

Case law keeps the analysis cautious. A single financial contribution, help between relatives or a project still in trial mode does not automatically create a de facto company. The court always has to look at the combination of the Civil Code criteria and how the parties actually behaved over time.

When a de facto company is recognised, the consequences can be serious. The parties may have to discuss profit, loss and debt sharing as if they had been formal partners. The dispute then becomes wider than the original relationship, because the economic logic of the file has to be rebuilt.

That reclassification can also make it harder to exit the project, especially if the evidence was poorly organised or business flows were mixed with personal accounts. The more informal the structure, the more expensive it is usually to explain later.

Prevention is straightforward: a written framework, identified contributions, clear governance and rules for sharing results from the start. If the project is truly temporary, it should not be left to run without a framework. Time very quickly turns an informal collaboration into a potential dispute.

If doubt already exists, the next step is to gather the documents, date the key exchanges and check whether the company criteria are really met. An early review often avoids a bad reclassification or, on the contrary, clarifies a situation that is already unstable.

A one-off collaboration, family help or a trial project is not enough on its own. What draws the court's attention is repeated contributions, a shared business logic and the way the parties behave over time. The more the relationship looks like a shared organisation, the higher the qualification risk.

When there is a real intention to work together, simple rules should be set from the start: who contributes what, who decides what, how results are shared and how the project ends if it stops. That keeps an informal partnership from turning into a dispute.

A clean file should keep the documents that tell the shared story: contributions, key exchanges, financial flows, sharing of results and operating rules. The clearer these éléments are organised, the easier it is to show whether a de facto company exists or not.

As soon as doubt appears, the flows, rôles and written exchanges should be reviewed again. That reassessment often shows whether the file is really a de facto company issue or just a poorly documented collaboration.

A well-kept file also makes it easier to separate a de facto company from a badly drafted partnership. That distinction often avoids months of avoidable discussion.

When exchanges are numerous but poorly filed, it becomes hard to explain the case clearly. An early review with the right documents helps avoid a practical arrangement being read as a company.

It is often this work of structuring the file that makes the difference between a readable case and one that turns back against the parties.

In 2026, the de facto company remains above all a qualification risk not to be underestimated. The best way to avoid it remains to formalize the project, the contributions, the governance and the distribution of results early.

(Official sources: Civil Code art. 1832, case law of the Court of Cassation)